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Audi Lane change and exit warning: Malfunction! Please contact service.

Lane change and exit warning: Malfunction! Please contact service.

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceYes. The displayed warning explicitly says, “Please contact service,” and the Audi communications describe workshop diagnostic findings.
Confidence90%

Quick answer

For certain 2020–2021 US Audi A7, A8, and e-tron vehicles, this message is documented in Audi manufacturer communications as occurring with sporadic failure of intersection/lane-changing assist. Audi directs service diagnosis; the supplied evidence does not establish whether the vehicle is safe to drive or charge.

This page separates verified manufacturer/regulator evidence from supporting material. Unsupported causes, repairs or safety conclusions are not guessed.

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1. What does Lane change and exit warning: Malfunction! Please contact service. mean?

For certain 2020–2021 US Audi A7, A8, and e-tron vehicles, this message is documented in Audi manufacturer communications as occurring with sporadic failure of intersection/lane-changing assist. Audi directs service diagnosis; the supplied evidence does not establish whether the vehicle is safe to drive or charge.

2. Technical explanation

NHTSA-posted Audi manufacturer communications document this instrument-cluster message among warnings that may appear when the intersection/lane-changing assist fails sporadically. The communications state that diagnostic trouble codes may be stored in one or both lane change assistance control modules, J769/J770 (address words 003C and/or 00CF), or in one or both front corner radar control modules, J1088/J1089. The supplied evidence does not identify a specific DTC, root cause, or repair for an individual vehicle.

3. What system is affected?

Intersection/lane-changing assist, including lane change assistance control modules J769 and J770 and front corner radar control modules J1088 and J1089, as identified in the Audi manufacturer communications.

4. How serious is this code?

Unknown. The verified evidence does not assign a severity level.

5. Symptoms you may notice

  • Instrument-cluster message: “Lane change and exit warning: Malfunction! Please contact service.”
  • Sporadic failure of the intersection/lane-changing assist.
  • The communications also list possible accompanying messages for intersection assist, rear intersection assistant, and Audi pre sense.

6. Possible causes

  • Diagnostic trouble codes may be stored in one or both lane change assistance control modules J769/J770 or one or both front corner radar control modules J1088/J1089.
  • A specific underlying cause is not yet established by verified evidence.

7. Can I still drive the vehicle?

Not yet established by verified evidence.

8. Can I charge the vehicle?

Not yet established by verified evidence.

9. What you can safely do

  • Contact an Audi service facility, as directed by the displayed message.
  • Record any accompanying instrument-cluster messages and whether the concern is sporadic, to assist service diagnosis.

10. Step-by-step troubleshooting

  1. Have service check for stored DTCs in lane change assistance control modules J769/J770 at address words 003C and/or 00CF.
  2. Have service check for stored DTCs in front corner radar control modules J1088/J1089.
  3. No owner-performed repair procedure is established by the supplied verified evidence.

11. When to contact service

Yes. The displayed warning explicitly says, “Please contact service,” and the Audi communications describe workshop diagnostic findings.

12. What the service center may check

  • Scan one or both lane change assistance control modules J769/J770, address words 003C and/or 00CF, for stored DTCs.
  • Scan one or both front corner radar control modules J1088/J1089 for stored DTCs.
  • Assess the documented sporadic intersection/lane-changing-assist failure and any listed accompanying warnings.

13. Possible repair or resolution

  • Not yet established by verified evidence.

14. Affected vehicles

15. Related TSBs / service bulletins

  • NHTSA Manufacturer Communication 10193268, Audi document A9621682061155_2, published May 4, 2021. It documents sporadic intersection/lane-changing-assist failure and this warning message, with possible DTC storage in J769/J770 and/or J1088/J1089.
  • NHTSA Manufacturer Communication 10182519, Audi document A9620592061155_1, published November 2, 2020. It documents the same warning condition and possible DTC storage locations.

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

Verified applicability supplied: US-market 2020–2021 Audi A7, A8, and e-tron. Official NHTSA-hosted Audi communications: https://static.nhtsa.gov/odi/ffdd/tsbs/TSBS_RECEIVED_2020-2024.zip#nhtsa_id=10193268 and https://static.nhtsa.gov/odi/ffdd/tsbs/TSBS_RECEIVED_2020-2024.zip#nhtsa_id=10182519

19. Frequently asked questions

What does this Audi warning mean?

Audi manufacturer communications associate it with sporadic failure of the intersection/lane-changing assist.

Which vehicles are established as applicable?

The supplied evidence identifies US-market 2020–2021 Audi A7, A8, and e-tron vehicles.

Can I keep driving?

Not yet established by verified evidence.

Does this affect EV charging?

Not yet established by verified evidence.

What should a service facility inspect?

The communications identify possible stored DTCs in lane change assistance modules J769/J770 and/or front corner radar modules J1088/J1089.

20. Sources & verification

Verified
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